Garmin Descent Mk1 - Stainless w/Silicone Band

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The Garmin Descent Mk1 is a multi-gas nitrox and trimix decompression dive computer in a premium multi-activity GPS smartwatch.

Garmin Descent Mk1 - Stainless w/Silicone Band

Garmin Descent Mk1
Garmin Descent Mk1 In the Box Complete Kit Slim Profile Rear View On Wrist Simulations of Dive Mode, Compass, Planning and Gauge Mode Screens Use it to Tell the Date and Time Also Gas Switching Process - Selecting Yes and Not Now Results Surface GPS Mapping Garmin Descent™ Mk1: Getting Started Garmin Descent Mk1: Using Garmin Connect Mobile
  • Nitrox & Trimix decompression dive computer in multi-activity GPS smartwatch
  • Bühlmann ZHL-16c algorithm with configurable Gradient Factors
  • Built-in sensors include depth, temperature, 3-axis compass, gyroscope and barometric altimeter
  • Bluetooth Smart, Wi-Fi and ANT+ supports notifications with your smartphone
  • Suitable for wear as your everyday timepiece

For those sport and technical divers who like a wrist-watch form factor suitable for everyday wear, the Garmin Descent Mk1 builds on the features of their fēnix® 5X multi-activity GPS smartwatch to add SCUBA diving functionality. The Mk1 includes mixed-gas decompression dive computer functionality in a premium smartwatch with activity profiles, performance metrics and smart notifications. A high-resolution 64-color Garmin Chroma Display™ with LED back light assures readability in all dive conditions. Transflective technology that reflects and transmits light at the same time enables the display to also be readable under intense sunlight. The Mk1 supports dual satellite based navigation systems (on the surface only) with onscreen topographic mapping and pinpoint location reference — so you can mark your dive entry and exit points.

Once underwater, the Bühlmann ZHL-16C decompression algorithm with user configurable Gradient Factors allows individual control of your dive computer decompression calculations and stop depths. Full color graphics plus tone and vibration alerts help keep you informed while you’re submerged. During a decompression dive, the Mk1 can provide time-to-surface based on "look ahead" at planned gas switches along with current ceiling and stop time. Multiple gas definition presets are supported with any combination of air, nitrox, trimix and oxygen. For technical dives, the Mk1 is user configurable to NOT "lockout" after a missed stop. Even underwater (if worn next to the skin), the Mk1 is able to measure and display your actual heartbeat rate.

On land, the Descent Mk1 also functions as a robust training and outdoor companion. It has profiles for running, cycling, swimming, as well as indoor workouts and recreational activities such as boating, golf, hiking, climbing, skiing and much more. Thanks to built-in Bluetooth, the Mk1 supports notifications from a paired smartphone. It's also Wi-Fi enabled to connect and automatically send activity uploads, including your dive logs, for review or sharing on Garmin Connect. What’s more, the Descent Mk1 design is suitable for wear as your everyday timepiece.

Features, Functions and Alerts Highlights:

  • Decompression dive computer with {1.2 inch | 30.4 mm} color display in a richly featured multi-activity smartwatch
  • Pinpoint navigation and topographic mapping (on the surface only) using both GPS and GLONASS satellite signals
  • Built-in sensors include depth, temperature, 3-axis compass, gyroscope, barometric altimeter and heart rate
  • Supports open-circuit single-gas, multi-gas, closed-circuit rebreather (CCR), gauge and apnea (free-diving) modes
  • Plan your dives directly on the device, including planned deco with gas switches
  • Supports a bottom gas plus up to 5 decompression/backup gas mixes including air, nitrox, trimix and 100% oxygen
  • Bühlmann ZHL-16c algorithm with configurable Gradient Factors
  • GF presets for sport diving NDL safety factor: High = 35/75, Medium = 40/85, Low = 45/95
  • Depth rated to 10ATM of pressure or approximately { 330 feet | 100 meters }, designed to comply with EN13319
  • Various alerts (tone, vibration, display) for:

    • CNS Warning >= 80% and CNS Critical >= 100%
    • OTU Warning >= 250 and OTU Critical >= 300
    • NDL Warning >= 80% of inert gas limit and NDL Exceeded
    • PO2 Low < 0.18 ATA (suppressed first two minutes of dive)
    • PO2 High and PO2 Critical (user configurable up to 1.6 ATA)
    • Ascent rate fast >= {30 fpm | 10 mpm} for >= 10 seconds
    • Gas switch suggested (based on enabled gas list and selected switch PO2)
    • Approaching deco stop, deco stop completed and all deco complete
    • Depth Ceiling violation if above ceiling by {2.0 ft | 0.6 m}
    • Multiple user configurable depth and runtime alerts
    • User configurable safety stop
    • User configurable units: imperial (feet, psi) or metric (meters, bar)
    • Battery Low < 20% and Battery Critical < 10%
  • Missed deco lockout can be disabled prior or post dive with user acknowledgement
  • On device dive log lets you store and review data from up to 200 dives
  • Store and share unlimited dive log online via Garmin Connect™ and its included mobile app
  • Bluetooth Smart, Wi-Fi and ANT+ supports wireless connectivity to a variety of devices as well as firmware updates.
  • Elevate™ wrist heart rate technology with multisport activity profiles, performance metrics and notifications to Android and IOS smartphones
  • Battery life: up to 19 days in watch mode, 10 days in smartwatch mode, 40 hours in dive mode and 20 hours in GPS mode
  • Construction material is a fiber-reinforced polymer body with sapphire crystal lens and stainless steel bezel & buttons; includes silicone wrist band
  • Also, you can use it to tell the day, date, and time with a large selection of configurable watch faces
  • Physical size is: {51 x 51 x 17.8 mm} or {2 x 2 x 0.7 inch}

What's in the box? - The box contains the Garmin Descent Mk1 multi-activity GPS smartwatch and dive computer in silver and black color with a standard length silicone QuickFit26 wrist band, plus an extra long silicone wrist band for use with thick exposure suits, along with a charging cable and quick start guide. Separately ordered optional Garmin accessories include a mesh top travel case, QuickFit wrist bands, extra charging cable and mains charging adapters.

A web based Garmin Mk1 Owners Manual is here.

More Information
Brand Garmin
SKU GM-010-01760-00
Weight 1.100000

Garmin Descent Mk1 Features Matrix

For those divers who like a multi-activity sports smartwatch form factor suitable for everyday wear, the recently introduced Garmin Descent Mk1 builds on the features of their Fenix 5 multisport GPS watch to add sport and technical diving functionality. The Garmin Descent Mk1 is the most richly featured wrist-watch sized design we've ever seen in an open-circuit scuba dive computer.


Lens Materialsapphire crystal
Bezel Materialstainless steel
Case materialfiber-reinforced polymer
QuickFit™ watch band compatibleyes (26 mm)
Strap materialsilicone
Physical size51 x 51 x 17.8 mm
Weightsteel with silicone band: 101 g
Water ratingDive (Designed to comply with EN13319)
Display typesunlight-visible, transflective memory-in-pixel (MIP)
Display size1.2” (30.4 mm) diameter
Display resolution240 x 240 pixels
Color display
Battery lifeDive mode: Up to 40 hours
Watch mode: Up to 19 days
Smartwatch mode: Up to 10 days
GPS/HR Activity mode: Up to 20 hours
UltraTrac™ mode: Up to 30 hours
Memory/History16 GB

Clock Features

GPS Time Sync
Automatic daylight saving time
Alarm clock
Sunrise/sunset times
Face It™ watch face creator


Garmin Elevate™ wrist heart rate monitor
Barometric altimeter
Depth sensor

Daily Smart Features

ConnectivityBluetooth® Smart, ANT+®, Wi-Fi®
Connect IQ™ (downloadable watch faces, data fields, widgets and apps)
Smart notifications
Controls smartphone music
Find My Phone
Find My Watch
VIRB® remote
Smartphone compatibilityiPhone®, Android™, Windows®
Compatible with Garmin Connect™ Mobile

Diving Features

Dive activity maximum operating depth100 meters (Designed to comply with EN13319)
Single-gas open-circuit mode
Multi-gas open-circuit mode
Constant PO2 closed-circuit mode (new)
Gauge mode
APNEA mode
APNEA hunt mode
Decompression modelBühlmann ZHL-16c with gradient factors
Nitrox support
Trimix support
Gas mixesAir, nitrox and trimix, up to 100% O2; 1 bottom gas, and up to 5 deco and/or backup gases
Auto start/end dive
Custom end-dive timeoutyes (20 sec to 10 min)
Safety Stopyes (customizable off/3min/5min)
Deep Stopsyes (using custom gradient factors)
Customizable conservatismyes (low/medium/high or custom using gradient factors)
Dive ascent/descent rate indicator
Automatic altitude adjustment
No fly timeyes (with 24hr countdown)
Dive planneryes (basic NDL + multi-gas deco planner)
Backlightyes (configurable time and intensity; auto-on at depth)
Automatically saves dive entry and exit locations
Sync dive log to Garmin Connect™ and Garmin Connect™ Mobile
Alerts & alarmsAudible and vibration alarms for ascent rate, PO2, CNS/OTU, NDL, deco, gas switching. Customizable (up to 40) audible and/or vibration per dive mode, based on depth or time
3-axis dive compassyes (with adjustable heading, quick change to 90R, 90L and reciprocal). Indicates degrees and direction back to set heading
Missed Deco Lockoutyes (can be disabled prior to dive with user acknowledgement)
Residual Tissue Loading Resetyes (on the surface with user acknowledgement)
Surface diver status widgetyes (surface interval, N2/HE loading, CNS, OTU and tissue compartment status)

Boating Features

Preloaded Boating ProfilesBoating

Activity Tracking Features

Step counter
Move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it)
Auto goal (learns your activity level and assigns a daily step goal)
Sleep monitoring (monitors total sleep and periods of movement or restful sleep)
Calories burned
Floors climbed
Distance traveled
Intensity minutes
Move IQ™
Fitness Ageyes (in app)

Fitness Equipment/Gym

Preloaded gym activity profilesIndoor Rowing

Training, Planning and Analysis Features

GPS speed and distance
Customizable data pages
Customizable activity profiles
Auto Pause®
Interval training
Advanced workouts
Downloadable training plans
Auto Lap®
Manual lap
Virtual Partner
Configurable lap alerts
V02 max
Training Status (lets you see if you’re training effectively by tracking your training history and fitness level trend.)
Training Load (your total training load for the last 7 days calculated from estimated EPOC)
Training Effect (aerobic)
Training Effect (anaerobic)
Customizable alerts
Audio prompts
Finish time
Race an Activity
Course guidance
Segments (Live, Garmin)
Strava features (Beacon, live segments)
Group LiveTrack
Round-trip course creator (running/cycling)
Touch and/or button lock
Hot keys
Auto scroll
Activity history on watch

Heart Rate Features

HR zones
HR alerts
HR calories
% HR max
Recovery time
Auto max HR
HRV stress test (measures your heart rate variability while standing still, for 3 minutes, to provide you with an estimated stress level; the scale of this is 1 to 100; low scores indicate lower stress levels)yes (with compatible accessory)
Records heart rate while swimmingyes (with HRM-Tri™ and HRM-Swim™)
HR Broadcast (broadcasts HR data over ANT+™ to paired devices)

Running Features

Preloaded run profilesRunning, Indoor Running, Trail Running
GPS-based distance, time and pace
Running dynamics
Cadence (provides real-time number of steps per minute)
Performance condition (after running 6–20 minutes, compares your real-time condition to your average fitness level)
Lactate threshold (through analysis of your pace and heart rate, estimates the point where your muscles start to rapidly fatigue)yes (with compatible accessory)
Run workouts
Race predictor
Foot pod capable

Golfing Features

Yardage to F/M/B (distance to front, middle and back of green)
Yardage to layups/doglegs
Measures shot distance (calculates exact yardage for shots from anywhere on course)Automatic
Digital scorecard
Stat tracking (strokes, putts per round, greens and fairways hit)
Garmin AutoShot™
Auto CourseView updates
Green View with manual pin position
Hazards and course targets
TruSwing™ compatible
Round timer/odometer

Outdoor Recreation Features

Preloaded outdoor recreation profilesHiking, Climbing, Mountain Biking, Skiing, Snowboarding, XC Skiing, Stand Up Paddleboarding, Rowing, Jumpmaster, Tactical
Point-to-point navigation
Bread crumb trail in real time
Back to start
UltraTrac mode
Around Me mode
Elevation profile
Distance to destination
Barometric trend indicator
Storm alert
Trail run auto climb
Vertical speed
Total ascent/descent
Preloaded topographical maps
Future elevation plot
Downloadable cartography support
Compatible with BaseCamp™
GPS coordinates
Projected waypoint
Sight 'N Go
Area calculationyes (via Connect IQ™)
Hunt/fish calendaryes (via Connect IQ™)
Sun and moon informationyes (via Connect IQ™)
Dual grid coordinates

Cycling Features

Preloaded cycling profilesBiking, Indoor Biking, Mountain Biking
Bike lap and lap maximum power (with power sensor)
Race an activity
Time/distance alerts (triggers alarm when you reach goal)
Garmin Cycle Map (routable cycling-specific street map)
Compatible with Vector™ (power meter)
Power meter compatible (displays power data from compatible third-party ANT+™-enabled power meters)
Compatible with Varia Vision™ (head-mounted display)
Compatible with Varia™ radar (rear-facing radar)
Compatible with Varia™ lights
Speed and cadence sensor support (with sensor)yes (ANT+® and Bluetooth® Smart sensors)

Swimming Features

Preloaded swim profilesPool Swimming, Open Water Swimming
Pool swim metrics (lengths, distance, pace, stroke count/rate, calories)
Stroke type detection (freestyle, backstroke, breaststroke, butterfly)
Swim efficiency (SWOLF)
Drill logging
Pool swim workouts
Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, calories)
Heart rate (real-time during rests, interval and session stats during rests, and automatic heart rate download post-swim)yes (with HRM-Tri™ and HRM-Swim™)

The Mk1 does not include support necessary to display the cylinder gas pressure, sometimes called "air integration".

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